Abstract

A single-frequency diode-pumped Q-switched Er, Yb:phosphate glass laser that oscillates at an eye-safe 1.54μm wavelength has been developed for use in coherent Doppler lidar. A maximum TEM00mode Q-switched output energy of 10.9  mJ and a relatively long pulse width of 228  ns were obtained at a repetition rate of 15  Hz by use of a modified 2-m-long telescopic cavity. Frequency stability of as high as ±1.9MHz standard deviation and a side-mode suppression ratio of more than 30  dB were also achieved.

© 2001 Optical Society of America

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